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240 lines
6.6 KiB
C
240 lines
6.6 KiB
C
/* Threads.h -- multithreading library
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2023-04-02 : Igor Pavlov : Public domain */
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#ifndef ZIP7_INC_THREADS_H
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#define ZIP7_INC_THREADS_H
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#ifdef _WIN32
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#include "7zWindows.h"
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#else
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#if defined(__linux__)
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#if !defined(__APPLE__) && !defined(_AIX) && !defined(__ANDROID__)
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#ifndef Z7_AFFINITY_DISABLE
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#define Z7_AFFINITY_SUPPORTED
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// #pragma message(" ==== Z7_AFFINITY_SUPPORTED")
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// #define _GNU_SOURCE
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#endif
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#endif
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#endif
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#include <pthread.h>
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#endif
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#include "7zTypes.h"
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EXTERN_C_BEGIN
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#ifdef _WIN32
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WRes HandlePtr_Close(HANDLE *h);
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WRes Handle_WaitObject(HANDLE h);
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typedef HANDLE CThread;
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#define Thread_CONSTRUCT(p) { *(p) = NULL; }
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#define Thread_WasCreated(p) (*(p) != NULL)
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#define Thread_Close(p) HandlePtr_Close(p)
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// #define Thread_Wait(p) Handle_WaitObject(*(p))
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#ifdef UNDER_CE
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// if (USE_THREADS_CreateThread is defined), we use _beginthreadex()
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// if (USE_THREADS_CreateThread is not definned), we use CreateThread()
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#define USE_THREADS_CreateThread
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#endif
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typedef
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#ifdef USE_THREADS_CreateThread
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DWORD
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#else
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unsigned
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#endif
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THREAD_FUNC_RET_TYPE;
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#define THREAD_FUNC_RET_ZERO 0
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typedef DWORD_PTR CAffinityMask;
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typedef DWORD_PTR CCpuSet;
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#define CpuSet_Zero(p) *(p) = (0)
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#define CpuSet_Set(p, cpu) *(p) |= ((DWORD_PTR)1 << (cpu))
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#else // _WIN32
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typedef struct
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{
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pthread_t _tid;
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int _created;
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} CThread;
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#define Thread_CONSTRUCT(p) { (p)->_tid = 0; (p)->_created = 0; }
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#define Thread_WasCreated(p) ((p)->_created != 0)
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WRes Thread_Close(CThread *p);
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// #define Thread_Wait Thread_Wait_Close
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typedef void * THREAD_FUNC_RET_TYPE;
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#define THREAD_FUNC_RET_ZERO NULL
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typedef UInt64 CAffinityMask;
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#ifdef Z7_AFFINITY_SUPPORTED
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typedef cpu_set_t CCpuSet;
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#define CpuSet_Zero(p) CPU_ZERO(p)
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#define CpuSet_Set(p, cpu) CPU_SET(cpu, p)
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#define CpuSet_IsSet(p, cpu) CPU_ISSET(cpu, p)
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#else
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typedef UInt64 CCpuSet;
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#define CpuSet_Zero(p) *(p) = (0)
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#define CpuSet_Set(p, cpu) *(p) |= ((UInt64)1 << (cpu))
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#define CpuSet_IsSet(p, cpu) ((*(p) & ((UInt64)1 << (cpu))) != 0)
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#endif
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#endif // _WIN32
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#define THREAD_FUNC_CALL_TYPE Z7_STDCALL
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#if defined(_WIN32) && defined(__GNUC__)
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/* GCC compiler for x86 32-bit uses the rule:
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the stack is 16-byte aligned before CALL instruction for function calling.
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But only root function main() contains instructions that
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set 16-byte alignment for stack pointer. And another functions
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just keep alignment, if it was set in some parent function.
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The problem:
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if we create new thread in MinGW (GCC) 32-bit x86 via _beginthreadex() or CreateThread(),
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the root function of thread doesn't set 16-byte alignment.
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And stack frames in all child functions also will be unaligned in that case.
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Here we set (force_align_arg_pointer) attribute for root function of new thread.
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Do we need (force_align_arg_pointer) also for another systems? */
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#define THREAD_FUNC_ATTRIB_ALIGN_ARG __attribute__((force_align_arg_pointer))
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// #define THREAD_FUNC_ATTRIB_ALIGN_ARG // for debug : bad alignment in SSE functions
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#else
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#define THREAD_FUNC_ATTRIB_ALIGN_ARG
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#endif
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#define THREAD_FUNC_DECL THREAD_FUNC_ATTRIB_ALIGN_ARG THREAD_FUNC_RET_TYPE THREAD_FUNC_CALL_TYPE
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typedef THREAD_FUNC_RET_TYPE (THREAD_FUNC_CALL_TYPE * THREAD_FUNC_TYPE)(void *);
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WRes Thread_Create(CThread *p, THREAD_FUNC_TYPE func, LPVOID param);
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WRes Thread_Create_With_Affinity(CThread *p, THREAD_FUNC_TYPE func, LPVOID param, CAffinityMask affinity);
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WRes Thread_Wait_Close(CThread *p);
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#ifdef _WIN32
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#define Thread_Create_With_CpuSet(p, func, param, cs) \
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Thread_Create_With_Affinity(p, func, param, *cs)
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#else
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WRes Thread_Create_With_CpuSet(CThread *p, THREAD_FUNC_TYPE func, LPVOID param, const CCpuSet *cpuSet);
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#endif
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#ifdef _WIN32
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typedef HANDLE CEvent;
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typedef CEvent CAutoResetEvent;
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typedef CEvent CManualResetEvent;
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#define Event_Construct(p) *(p) = NULL
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#define Event_IsCreated(p) (*(p) != NULL)
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#define Event_Close(p) HandlePtr_Close(p)
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#define Event_Wait(p) Handle_WaitObject(*(p))
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WRes Event_Set(CEvent *p);
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WRes Event_Reset(CEvent *p);
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WRes ManualResetEvent_Create(CManualResetEvent *p, int signaled);
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WRes ManualResetEvent_CreateNotSignaled(CManualResetEvent *p);
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WRes AutoResetEvent_Create(CAutoResetEvent *p, int signaled);
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WRes AutoResetEvent_CreateNotSignaled(CAutoResetEvent *p);
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typedef HANDLE CSemaphore;
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#define Semaphore_Construct(p) *(p) = NULL
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#define Semaphore_IsCreated(p) (*(p) != NULL)
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#define Semaphore_Close(p) HandlePtr_Close(p)
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#define Semaphore_Wait(p) Handle_WaitObject(*(p))
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WRes Semaphore_Create(CSemaphore *p, UInt32 initCount, UInt32 maxCount);
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WRes Semaphore_OptCreateInit(CSemaphore *p, UInt32 initCount, UInt32 maxCount);
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WRes Semaphore_ReleaseN(CSemaphore *p, UInt32 num);
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WRes Semaphore_Release1(CSemaphore *p);
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typedef CRITICAL_SECTION CCriticalSection;
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WRes CriticalSection_Init(CCriticalSection *p);
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#define CriticalSection_Delete(p) DeleteCriticalSection(p)
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#define CriticalSection_Enter(p) EnterCriticalSection(p)
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#define CriticalSection_Leave(p) LeaveCriticalSection(p)
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#else // _WIN32
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typedef struct _CEvent
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{
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int _created;
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int _manual_reset;
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int _state;
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pthread_mutex_t _mutex;
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pthread_cond_t _cond;
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} CEvent;
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typedef CEvent CAutoResetEvent;
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typedef CEvent CManualResetEvent;
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#define Event_Construct(p) (p)->_created = 0
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#define Event_IsCreated(p) ((p)->_created)
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WRes ManualResetEvent_Create(CManualResetEvent *p, int signaled);
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WRes ManualResetEvent_CreateNotSignaled(CManualResetEvent *p);
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WRes AutoResetEvent_Create(CAutoResetEvent *p, int signaled);
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WRes AutoResetEvent_CreateNotSignaled(CAutoResetEvent *p);
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WRes Event_Set(CEvent *p);
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WRes Event_Reset(CEvent *p);
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WRes Event_Wait(CEvent *p);
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WRes Event_Close(CEvent *p);
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typedef struct _CSemaphore
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{
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int _created;
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UInt32 _count;
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UInt32 _maxCount;
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pthread_mutex_t _mutex;
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pthread_cond_t _cond;
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} CSemaphore;
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#define Semaphore_Construct(p) (p)->_created = 0
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#define Semaphore_IsCreated(p) ((p)->_created)
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WRes Semaphore_Create(CSemaphore *p, UInt32 initCount, UInt32 maxCount);
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WRes Semaphore_OptCreateInit(CSemaphore *p, UInt32 initCount, UInt32 maxCount);
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WRes Semaphore_ReleaseN(CSemaphore *p, UInt32 num);
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#define Semaphore_Release1(p) Semaphore_ReleaseN(p, 1)
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WRes Semaphore_Wait(CSemaphore *p);
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WRes Semaphore_Close(CSemaphore *p);
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typedef struct _CCriticalSection
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{
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pthread_mutex_t _mutex;
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} CCriticalSection;
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WRes CriticalSection_Init(CCriticalSection *p);
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void CriticalSection_Delete(CCriticalSection *cs);
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void CriticalSection_Enter(CCriticalSection *cs);
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void CriticalSection_Leave(CCriticalSection *cs);
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LONG InterlockedIncrement(LONG volatile *addend);
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#endif // _WIN32
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WRes AutoResetEvent_OptCreate_And_Reset(CAutoResetEvent *p);
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EXTERN_C_END
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#endif
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